Departmental Research Publications


  • Spence, P., J. Walker, W. Robarge, W. Preston, and D. Osmond. 2015. Comparing Nitrous Oxide Emissions from Three Residential Landscapes under Different Management Schemes Following Natural Rainfall Events. Urban Ecosystems. DOI: 10.1007/s11252-015-0453-9.
  • Israel, D.W. and T.J. Smyth. 2015. Crop utilization of nitrogen in swine lagoon sludge. Comm. Soil Sci. Plant Anal. 46:1525-1539.
  • Rajkovish, S., C.R. Crozier, T.J. Smyth, D. Crouse and D.L. Osmond. 2015. Updating North Carolina corn yields and N recommendations to match current production practices and new hybrids. Crop, Forage and Turfgrass Management. DOI 10.2134/cftm2014.0085
  • Jani, A.D., J. Grossman, T.J. Smyth and S. Hu. 2015. Winter legume cover crop root decomposition and N release dynamics under disking and roller-crimping termination approaches. Renewable Agric. Food Systems. DOI 10.1017/S1742170515000113
  • Jani, A.D., J.M. Grossman, T.J. Smyth and S. Hu. 2015. Influence of soil inorganic nitrogen and root diameter size on legume cover crop root decomposition and nitrogen release. Plant and Soil 393:57-68. DOI 10.1007/s11104-015-2473-x
  • O’Connell, S., Shi, W., Grossman, J. M., Hoyt, G. D., Fager, K. L., & Creamer, N. G. 2015. Short-term nitrogen mineralization from warm-season cover crops in organic farming systems. Plant and Soil, 1-15.
  • Chen, H., Mothapo, N. V., & Shi, W. 2015. Soil Moisture and pH Control Relative Contributions of Fungi and Bacteria to N2O Production. Microbial ecology, 69(1), 180-191.
  • Chen, H., Mothapo, N. V., & Shi, W. 2015. Fungal and bacterial N 2 O production regulated by soil amendments of simple and complex substrates. Soil Biology and Biochemistry, 84, 116-126.
  • Mothapo, N., Chen, H., Cubeta, M. A., Grossman, J. M., Fuller, F., & Shi, W. 2015. Phylogenetic, taxonomic and functional diversity of fungal denitrifiers and associated N2O production efficacy. Soil Biology and Biochemistry, 83, 160-175.


  • Chen, H., Mothapo, N. V., & Shi, W. 2014. The significant contribution of fungi to soil N2O production across diverse ecosystems. Applied Soil Ecology, 73, 70-77.
  • Liang, S., Grossman, J., & Shi, W. 2014. Soil microbial responses to winter legume cover crop management during organic transition. European Journal of Soil Biology, 65, 15-22.
  • Tian, L., & Shi, W. 2014. Soil peroxidase regulates organic matter decomposition through improving the accessibility of reducing sugars and amino acids. Biology and fertility of soils, 50(5), 785-794.
  • Tian, L., & Shi, W. 2014. Short-term effects of plant litter on the dynamics, amount, and stoichiometry of soil enzyme activity in agroecosystems. European Journal of Soil Biology, 65, 23-29.
  • Barnes, J., Nelson, P., Whipker, B. E., Dickey, D. A., Hesterberg, D., & Shi, W. 2014. Statistical Model for Describing Macronutrient Impacts on Container Substrate pH Over Time. HortScience, 49(2), 207-214.
  • Walker, John.T., Robarge, Wayne.P., and Austin, Rob. 2014. Modeling of ammonia dry deposition to a Pocosin landscape downwind of a large poultry facility. Agriculture, Ecosystems and Environment. 185:161-175.
  • Osmond, D.L., D.LK. Hoag, A.E. Luloff, D.W. Meals, K. Neas. 2014. Farmers Use of Nutrient Management: Lessons from Watershed Case Studies. J. Environ. Qual. doi:10.2134/jeq2014.02.0091.
  • Wiseman, Jacob D., Michael R. Burchell, Garry L. Grabow, Deanna L. Osmond, and T.L. Messer, 2014. Groundwater Nitrate Concentration Reductions in a Riparian Buffer Enrolled in the NC Conservation Reserve Enhancement Program. Journal of the American Water Resources Association (JAWRA) 50(3): 653-664. DOI: 10. 1111/jawr.12209.
  • Larsen, E.M., J. Grossman, J. Edgell, G. Hoyt, D. Osmond, and S. Hu. 2014. Evaluating Soil Carbon Pools and Losses in Long-term Organic and Conventional Farming Systems. Soil Tillage Res. 139:37-45.
  • Woods, B.R., A.E. Luloff, D.L. Osmond, and D.L. Hoag. 2014. Towards a Synthesis: Lessons from Thirteen Cropland Watershed-scale Studies. Society & Natural Resources 27:341-357. doi:10.1080/08941920.2013.861551.
  • Bordeaux, C., J. Grossman, J. White, D. Osmond, M. Poore, and S. Pietrosemoli. 2014. Effects of Rotational Infrastructure within Pasture-Raised Pig Operations on Ground Cover, Soil Nutrient Distribution and Bulk Density. J. Soil and Water Conserv. 69:120-130.
  • Crozier, C.R., and G.T. Roberson. Granular fertilizer spreader distribution patterns achieved at varying target application rates. Crop Management 2014:13:6 pp. doi:10.2134/CM-2013-0103-RS.
  • Parr, M., Grossman, J.M., Reberg-Horton, S.C., Crozier, C., Brinton, C. Roller-Crimper Termination for Legume Cover Crops in North Carolina: Impacts on Nutrient Availability to a Succeeding Corn Crop. Communications in Soil Science and Plant Analysis 2014:45:8, 1106-1119, DOI: 10.1080/00103624.2013.867061
  • Crozier, C.R., R.J. Gehl, R.W. Heiniger, D.H. Hardy. N management for high population corn production in wide and narrow rows. Agronomy Journal 2014:106:66-72.
  • Poole, C.A., R.W. Skaggs, G.M. Cheschier, M.A. Youssef, and C.R. Crozier. Effects of drainage water management on crop yields in North Carolina. Journal of Soil and Water Conservation 2013:68:429-437.
  • Oliveira, C.M.B., L.C. Gatiboni, D.J. Miquelluti, T.J. Smyth and J.A. Almeida. 2014. Maximum phosphorus adsorption capacity and binding energy constant of an Oxisol fitting different Langmuir models. Rev. Bras. Ci. Solo 38:1805-1815.


  • Gold, A.J., D. Parker, R.M. Waskom, J. Dobrowolski, M. O’Neill, P.M. Groffman, K. Addy, M. Barber, S. Batie, B. Benham, M. Bianchi, T. Blewett, C. Evensen, K. Farrell-Poe, C. Gardner, W. Grahma, J. Harrison, T. Harter, J. Kushner, R. Lowrance, J. Lund, R. Mahler, M. McClaran, M. McFarland, D. Osmond, J. Pritchett, L. Propkopy, C. Rock, A. Shober, M. Silitonga, D. Swackhamer, J. Thurston, D. Todey, R. Turco, G. Vellidis, and L. Wright Morton. 2013. Advancing water resource management in agricultural, rural, and urbanizing watersheds: Why land-grant universities matter. J. Soil and Water Conserv. 68:337-348. Doi:10.2489/jswc.68.4.337.
  • Osmond, D.L., K. Neas, A.M. Johnson, and S.L. Cahill. 2013. Fertilizer Use in Regulated River Basins: Is It What We Think? J. Contemporary Water Res.& Educ. 151:20-26.
  • Cahill, S., R. Gehl, D. Osmond, and D. Hardy. 2013. Evaluation of an Organic Copolymer Fertilizer Additive on Phosphorus Starter Fertilizer Response by Corn. Crop Management 12: doi:10.1094/CM-2013-0322-01.
  • Bouchard, N., D.L. Osmond, R. Winston, and W.F. Hunt. 2013. The Capacity of Roadside Vegetated Filter Strips and Swales to Sequester Carbon. Ecological Eng. 54: 227– 232.
  • Ethan M. Lineberger; A. Borhan M. Badruzzaman; M Ashraf Ali; Matthew L. Polizzotto.
    Arsenic removal from flowing irrigation water in Bangladesh: Impacts of channel properties.
    Journal of Environmental Quality. 2013;42(6):1733-1742.
  • Matthew L. Polizzotto; Ethan M. Lineberger; Audrey R. Matteson; Rebecca B. Neumann; A. Borhan M. Badruzzaman; M. Ashraf Ali
    Arsenic transport in irrigation water across rice-field soils in Bangladesh
    Environmental Pollution. 2013;179:210-217.
  • Ryan A. Pekarek; David W. Monks; Katherine M. Jennings; Greg D. Hoyt
    Bell pepper (capsicum annuum) tolerance to imazosulfuron and thifensulfuron-methyl
    Weed Technology. 2013;27(4):741-746.
  • Christopher J. Biai; José G. Garzon; Jason A. Osborne; Jonathan R. Schultheis; Ronald J. Gehl; Christopher C. Gunter
    Bell Pepper Seedling Phytotoxicity Due to Abscisic Acid Drench Applications
    International Journal of Vegetable Science. 2013;19(1):4-12.
  • Justin M. Conley; David H. Funk; Dean H. Hesterberg; Liang-Ching Hsu; Jinjun Kan; Yu-Ting Liu; David B. Buchwalter
    Bioconcentration and biotransformation of selenite versus selenate exposed periphyton and subsequent toxicity to the mayfly Centroptilum triangulifer
    Environmental Science and Technology. 2013;47(14):7965-7973.
  • Jihoon Kang; Melanie M. McCaleb; Richard A. McLaughlin
    Check dam and polyacrylamide performance under simulated stormwater runoff
    Journal of Environmental Management. 2013;129:593-598.
  • Rachel L. Cook; Dean Hesterberg
    Comparison of Trees and Grasses for Rhizoremediation of Petroleum Hydrocarbons
    International Journal of Phytoremediation. 2013;15(9):844-860.
  • Andrew Long; Joshua Heitman; Craig Tobias; Rebecca Philips; Bongkeun Song
    Co-occurring anammox, denitrification, and codenitrification in agricultural soils
    Applied and Environmental Microbiology. 2013;79(1):168-176.
  • N.V. Mothapo; J.M. Grossman; T. Sooksa-nguan; J. Maul; S.L. Bräuer; W. Shi
    Cropping history affects nodulation and symbiotic efficiency of distinct hairy vetch (Vicia villosa Roth.) genotypes with resident soil rhizobia
    Biology and Fertility of Soils. 2013;49(7):871-879.
  • Sergio M. Abit; Michael J. Vepraskas; Owen W. Duckworth; Aziz Amoozegar
    Dissolution of phosphorus into pore-water flowing through an organic soil
    Geoderma. 2013;197-198:51-58.
  • Colby J. Moorberg; Michael J. Vepraskas; Christopher P. Niewoehner
    Dynamics of P dissolution processes in the matrix and rhizospheres of bald cypress growing in saturated soil
    Geoderma. 2013;202-203:153-160.
  • D.L. Babcock; R.A. McLaughlin
    Erosion control effectiveness of straw, hydromulch, and polyacrylamide in a rainfall simulator
    Journal of Soil and Water Conservation. 2013;68(3):221-227.
  • N.V. Mothapo; J.M. Grossman; J.E. Maul; W. Shi; T. Isleib
    Genetic diversity of resident soil rhizobia isolated from nodules of distinct hairy vetch (Vicia villosa Roth) genotypes
    Applied Soil Ecology. 2013;64:201-213.
  • Carin Sjöstedt; Ingmar Persson; Dean Hesterberg; Dan Berggren Kleja; Hans Borg; Jon Petter Gustafsson
    Iron speciation in soft-water lakes and soils as determined by EXAFS spectroscopy and geochemical modelling
    Geochimica et Cosmochimica Acta. 2013;105:172-186.
  • A.D. Meijer; J.L. Heitman; J.G. White; R.E. Austin
    Measuring erosion in long-term tillage plots using ground-based lidar
    Soil and Tillage Research. 2013;126:1-10.
  • G. Philip Robertson; Tom W. Bruulsema; Ron J. Gehl; David Kanter; Denise L. Mauzerall; C.Alan Rotz; Candiss O. Williams
    Nitrogen-climate interactions in US agriculture
    Biogeochemistry. 2013;114(1-3):41-70.
  • Nape V. Mothapo; Huaihai Chen; Marc A. Cubeta; Wei Shi
    Nitrous oxide producing activity of diverse fungi from distinct agroecosystems
    Soil Biology and Biochemistry. 2013;66:94-101.
  • Xuechao Li; Feng Hu; Daniel Bowman; Wei Shi
    Nitrous oxide production in turfgrass systems: Effects of soil properties and grass clipping recycling
    Applied Soil Ecology. 2013;67:61-69.
  • Yuki Kojima; Joshua L. Heitman; Gerald N. Flerchinger; Robert Horton
    Numerical evaluation of a sensible heat balance method to determine rates of soil freezing and thawing
    Vadose Zone Journal. 2013;12(1).
  • Jay P. Graham; Matthew L. Polizzotto
    Pit latrines and their impacts on groundwater quality: A systematic review
    Environmental Health Perspectives. 2013;121(5):521-530.
  • Xuechao Li; Feng Hu; Wei Shi
    Plant material addition affects soil nitrous oxide production differently between aerobic and oxygen-limited conditions
    Applied Soil Ecology. 2013;64:91-98.
  • J.T. Walker; M.R. Jones; J.O. Bash; L. Myles; T. Meyers; D. Schwede; J. Herrick; E. Nemitz; W. Robarge
    Processes of ammonia air-surface exchange in a fertilized Zea mays canopy
    Biogeosciences. 2013;10(2):981-988.
  • Jessica L. Matthews; Edwin L. Fiscus; Ralph C. Smith; Joshua L. Heitman
    Quantifying plant age and available water effects on soybean leaf conductance
    Agronomy Journal. 2013;105(1):28-36.
  • Bonnie I. Kruft; James M. Harrington; Owen W. Duckworth; Andrzej A. Jarzȩcki
    Quantum mechanical investigation of aqueous desferrioxamine B metal complexes: Trends in structure, binding, and infrared spectroscopy
    Journal of Inorganic Biochemistry. 2013;129:150-161.
  • Sara R. Johnson; Michael R. Burchell; Robert O. Evans; Deanna L. Osmond; J. Wendell Gilliam
    Riparian buffer located in an upland landscape position does not enhance nitrate-nitrogen removal
    Ecological Engineering. 2013;52:252-261.
  • Huaihai Chen; Xuechao Li; Feng Hu; Wei Shi
    Soil nitrous oxide emissions following crop residue addition: A meta-analysis
    Global Change Biology. 2013;19(10):2956-2964.
  • Travis W. Gannon; Adam C. Hixson; Jerome B. Weber; Wei Shi; Fred H. Yelverton; Thomas W. Rufty
    Sorption of simazine and s-metolachlor to soils from a chronosequence of turfgrass systems
    Weed Science. 2013;61(3):508-514.
  • Sang R. Lee; Scott R. Yates; Wayne P. Robarge; Scott A. Bradford
    Synergistic ammonia losses from animal wastewater
    Atmospheric Environment. 2013;71:245-250.
  • Natalie R. Bouchard; Deanna L. Osmond; Ryan J. Winston; William F. Hunt
    The capacity of roadside vegetated filter strips and swales to sequester carbon
    Ecological Engineering. 2013;54:227-232.
  • Kai Yang; Wei Shi; Jiao-Jun Zhu
    The impact of secondary forests conversion into larch plantations on soil chemical and microbiological properties
    Plant and Soil. 2013;368(1-2):535-546.
  • M.S. Wells; S.C. Reberg-Horton; A.N. Smith; J.M. Grossman
    The reduction of plant-available nitrogen by cover crop mulches and subsequent effects on soybean performance and weed interference
    Agronomy Journal. 2013;105(2):539-545.
  • Jihoon Kang; Tyler D. Sowers; Owen W. Duckworth; Aziz Amoozegar; Joshua L. Heitman; Richard A. McLaughlin
    Turbidimetric determination of anionic polyacrylamide in low carbon soil extracts
    Journal of Environmental Quality. 2013;42(6):1902-1907.
  • David A. Crouse
    Using automated blogging for creation and delivery of topic-centric news
    Journal of Extension. 2013;51(4).
  • Sobral, L.F., T.J. Smyth, N.K. Fageria and L.F. Stone. 2013. Comparison of copper, managanese and zinc extraction with Mehlich-1, Mehlich-3 and DTPA solutions for soils of the Brazilian Coastal Tablelands. Comm. Soil Sci. Plant Anal. 44:2507-2513.
  • Israel, D.W., T.J. Smyth and D.H. Hardy. 2013. Land-applied swine lagoon sludge impacts soil concentration and crop uptake of zinc and copper. Crop Management 12:. DOI 10.1094/CM-2012-0156-RS. 8p.


  • Johnson, S., M.R. Burchell, R.O. Evans, D. L. Osmond, and J.W. Gilliam. 2012. Riparian Buffer Located in an Upland Landscape Position Does Not Enhance Nitrate-nitrogen Removal. Ecological Eng.
  • Harrington, J.M., Parker, D.L., Bargar, J.R., Jarzecki, A.A., Tebo, B.M., Sposito, G. and Duckworth, O.W. 2012. Structural dependence of Mn complexation by siderophores: Donor group dependence on complex stability and reactivity, Geochimica et Cosmochimica Acta, 88: 106-119.
  • Harrington, J.M., Bargar, J.R., Jarzecki, A.A., Roberts, J.G., Sombers, L.A. and Duckworth, O.W. 2012. Trace metal complexation by the triscatecholate siderophore protochelin: structure and stability, Biometals, 25: 393-412.
  • Meijer, A., J.L. Heitman, J.G. White, and R. Austin. 2012. Measuring Erosion in Long-Term Tillage Plots Using Ground-Based Lidar. Soil & Tillage Res. In press.
  • Pan, W., R.P. Boyles, J.G. White, and J.L. Heitman. 2012. Characterizing Soil Physical Properties for Soil Moisture Monitoring with the NC Environment and Climate Observing Network. J. Atmos. Oceanic Tech.29:933-943.
  • Park, M., Kim, H.-J., Kim, K.S., Duckworth, O.W., and Komarneni, S. 2012 Hydronium-promoted equilibrium mechanism for the alkali metal cation exchange reaction in Na-4-mica, Journal of Physical Chemistry C, in press.
  • Spence, P.L., D.L. Osmond, J.L. Heitman, and W.P. Robarge. 2012. Effects of Lawn Maintenance on Nutrient Losses via Overland Flow during Natural Rainfall Events. J. Am. Water Resour. Assoc. DOI: 10.1111/j.1752-1688.2012.00658.x
  • Taggart, M.J., J.L. Heitman, W. Shi, and M.J. Vepraskas. 2012. Temperature and Water Content Effects on Carbon Mineralization for Sapric Soil Material. Wetlands. In press.
  • Wu. L., Osmond, D.L., Graves, A.K., Burchell, M.R., and Duckworth, O.W. 2012 Relationships between Nitrogen Transformation Rates and Gene Abundance in Riparian Buffer Soils, Environmental Management, in press
  • Zhang, X., S. Lu, J.L. Heitman, R. Horton, and T. Ren. 2012. Measuring Soil-water Evaporation Time and Depth Dynamics with an Improved Heat-Pulse Sensor. Soil Sci. Soc. Am. J. 76:876-879.
  • Cravo, M.S., T.J. Smyth and E. Brasil. 2012. Liming of a Brazilian Amazon Oxisol and its influence on soil chemical properties and annual crop yields. Rev. Bras. Ci. Solo 36:895-907.


  • Osmond, D.L., S.L. Cahill, J.R. Schultheis, G.J. Holmes, and W.R. Jester. 2011. Pickling Cucumber Production. Int. J. Veg. Sci. 17:1-13.
  • Winston, R.J., W.F. Hunt, D.L. Osmond, W.G. Lord, and M. D Woodward. 2011. Field Evaluation of Four Level Spreader-Vegetative Filter Strips to Improve Urban Stormwater Quality. J. Irrig. and Drain. Eng. 137:170-182.
  • Kang, J., A. Amoozegar, D.L. Hesterberg, and D.L. Osmond. 2011. Phosphorus Leaching In Sandy Soils as Affected by Organic and Inorganic Fertilizer Sources. Geoderma 161:194–201.
  • Grossman, J.M.; Schipanski, M.E.; Sooksanguan, T.; Drinkwater, L.E., 2011. Diversity of rhizobia nodulating soybean [Glycine max (Vinton)] varies under organic and conventional management, Applied Soil Ecology, 50, p. 14-20
  • Parr, M.; Grossman, J.M.; Reberg-Horton, S.C.; Brinton, C. and Crozier, C. 2011. Nitrogen fixation of legume cover crops in no-till organic corn production, Agronomy Journal 103(6), 1578-1590
  • Reberg-Horton, S.C., J.M. Grossman, T.S. Kornecki, A.D. Meijer, A.J. Price, G.T. Place and T.M. Webster. Utilizing cover crop mulches to reduce tillage in organic systems in the Southeast. Renewable Agriculture and Food Systems. (Accepted).
  • Herring, S.L., S.R. Koenning, J.L. Heitman. 2010. Impact of Rotylenchulus reniformis on Cotton Yield as Affected by Soil Texture and Irrigation. J. Nemat. 42:319-323.
  • Smith, A.N., Reberg-Horton, S.C., Place, G.T., Meijer, A.D., Arellano, C., and Mueller, J.P. 2011. Rolled Rye Mulch for Weed Suppression in Organic No-Tillage Soybeans. Weed Science 59(2):224-231.
  • Taggart, M.J., J.L. Heitman, M.J. Vepraskas, and M. Burchell. 2011. Surface shading effects on soil C loss in a temperate muck soil. Geoderma doi:10.1016/j.geoderma.2011.04.020
  • Richter, B.S., K. Iyors, W. Shi, D.M. Benson D.M., 2011. Cellulase activity as a mechanism for suppression of Phytophthora toot rot in mulches. Phytopathology 101, 223-230.
  • Liu, Y., E. Dell, H Emily Dell, H.Y. Yao, T. Rufty, W. Shi, 2011. Microbial and soil properties in bentgrass putting greens: Impacts of nitrogen fertilization rates. Geoderma 162, 215-221.
  • Yao, H.Y., D. Bowman, W. Shi. 2011. Seasonal variations of soil microbial biomass and activity in warm- and cool-season turfgrass systems. Soil Biology & Biochemistry, in press.
  • J.P. Holt, E. van Heugten, A.K. Graves, M.T. See, W.E.M. Morrow. 2011. Growth performance and antibiotic tolerance patterns of nursery and finishing pigs fed growth-promoting levels of antibiotics. Livestock Sci. 136 (2): 184–191.
  • Graves, A.K. 2011. Food safety and implications for microbial source tracking. In C. Hagedorn, A. Blanch and V.J. Harwood (eds.) Microbial Source Tracking: Methods, Applications and Case Studies. Springer Publishers, New York, NY. (accepted)
  • Hathaway, J.M., W.F. Hunt, A.K. Graves, K.L. Bass, and A.E. Caldwell. 2011. Exploring fecal indicator bacteria in a constructed stormwater wetland. W. Sci. Technol. (In press)
  • Graves, A.K., L. Liwimbi, D.W. Israel, E. van Heugten, B. Robinson, C.W. Cahoon and J. F. Lubbers. 2011. Distribution of ten antibiotic resistance genes in E. coli isolates from swine manure, lagoon effluent and soil collected from a lagoon waste application field. Folia Microbiol. (In press)
  • Xiao, X., R. Horton, T. Sauer, J.L. Heitman, and T. Ren. 2011. Cumulative Soil Water Evaporation as a Function of Depth and Time. Vadose Zone J. 10:1016-1022.
  • Shuai, X., R.S. Yost and T.J. Smyth. 2011. Predicting soil phosphorus fertilizer rate using hierarchichal segmented regression models. Soil Sci. 176:303-306.
  • Smyth, T.J. 2011. Soil acidity and liming. Chapter 12, pp. 1-8. In Huang et al. (eds) Handbook of Soil Science: Resource Management and Environmental Impacts. 2nd Edition. CRC Press, Boca Raton, FL.


  • Osmond, D., N. Nadkarni, C. Driscoll, E. Andrews, A. Gold, S. Allred, A. Berkowitz, M. Keneres, T. Loecke, M. McGarry, K. Schwarz, M. Washington, and P. Groffman. The Role of Interface Organization in Science Communication and Understanding. Front Ecol Environ 2010 8: 306–313, doi:10.1890/090145.
  • Cahill, S.L., D.L. Osmond, R. Weisz and R. Heiniger. 2010. Evaluation of Nutrient Efficiency and Yield in Corn and Wheat. Agron. J. 102:1226-1236.
  • Osmond, D.L. 2010. USDA Water Quality Projects and the National Institute of Food and Agriculture Conservation Effects Assessment Project Watershed Studies. J. Soil Water Conserv. 64:142A-146A.
  • Grossman, J.M.; O’Neill, B.E.; Tsai, S.M.; Thies, J.E., 2010 Amazonian anthrosols support similar microbial communities that differ distinctly from those extant in adjacent, unmodified soils of the same mineralogy. Microbial Ecology, 60(1):192-205.
  • Tian, L., E. Dell, W. Shi, 2010. Chemical composition of dissolved organic matter in agroecosystems: Correlations with soil enzyme activity and carbon and nitrogen mineralization. Applied Soil Ecology 46, 426-435.
  • Graves, A.K. and C. Hagedorn. 2010. Identifying sources of fecal pollution in water with antibiotic resistance patterns. Environ. Res. J. 5(6): 749-774.
  • Graves, A.K. and R.W. Weaver. 2010. Characterization of Enterococci populations collected from a subsurface flow constructed wetland. J. Applied. Microbiol. 108 (4):1226-1234.
  • Liwimbi, L., A.K. Graves, D.W. Israel, E. van Heugten, B. Robinson, C.W. Cahoon and J.F. Lubbers. .2010. Microbial source tracking in a watershed dominated by swine. WATER (3), 587-604.
  • Hashimoto, Y., T.J. Smyth, D.W. Israel and D. Hesterberg. 2010. Lack of soybean root elongation responses to micromolar magnesium additions and fate of root-exuded citrate in acid subsoils. Journal of Plant Nutrition 33:219-239.
  • Kizewski, F.R., P. Boyle, D. Hesterberg, and J. D. Martin. 2010. Mixed anion (phosphate/oxalate) bonding to iron(III) materials. Journal of the American Chemical Society 132:2301-2308.
  • Hesterberg, D. 2010. Macro-scale chemical properties and x-ray absorption spectroscopy of soil phosphorus. p. 313-356. In B. Singh and M. Gräfe (Ed.) Synchrotron-based techniques in soils and sediments. Developments in Soil Science, Vol. 34. Elsevier, Burlington, MA.
  • Hesterberg, D., M. Duff, J. B. Dixon, and M. J. Vepraskas. X-ray microspectroscopy and chemical reactions in soil microsites. Journal of Environmental Quality (in press).
  • Kizewski, F., A. Morris, Y.-T. Liu, and D. Hesterberg. Spectroscopic approaches for phosphorus speciation in soils and other environmental systems. Journal of Environmental Quality (in press).
  • Polya, DA., Polizzotto, ML., Fendorf, S., Rodriguez-Lado, L., Hegan, A., Lawson, M., Rowland, HAL., Giri, AK., Mondal, D., Sovann, C., Al Lawati, WMM., and Dongen, BE., Gilbert, P., and Shantz, A. (2010) Arsenic in groundwaters of Cambodia. In Irvine, K., Murphy, T., Vanchan, V., and Vermette, S. (eds.) “Water Resources and Development in Southeast Asia”. SE Asia Center, NY.
  • Saal, L.B., and Duckworth, O.W. 2010. Synergistic Dissolution of Manganese Oxides as Promoted by Siderophores and Small Organic Acids, Soil Science Society of America Journal, 74:2032-2038.
  • Heiniger, R., Crozier, C., Hardy, D., Walls, B. and Reich, R. 2003. Sulfur Deficiency Symptoms in Emerging Corn. Corn Kernels 5/03. N.C. State University, Extension Corn Information. Raleigh, NC.
  • Reich, R.C. and R.G. Parker (ed.) 2006. North Carolina Flue-Cured Tobacco Field Manual. NC Dept. of Agriculture and Consumer Services, Raleigh, NC, 88 pp. Revised Edition.
  • Reich, R.C. and R.G. Parker (ed.) 2006. North Carolina Burley Tobacco Field Manual. NC Dept. of Agriculture and Consumer Services, Raleigh, NC, 88 pp. Revised Edition.
  • Reich, R. C., M. R. Tucker, and C. E. Stokes. 2003. History of Soil Testing in North Carolina. Papers Commemorating a Century of Soil Science published by Soil Science Society of North Carolina, pp. 203-208.
  • Singer, J., J.L. Heitman, T.J. Sauer, J. Prueger, and J.L. Hatfield. 2010. Contrasting Methods for Estimating Evapotranspiration in Soybean. Ag. Water Management 98:157-163.
  • Drake, W.L., D.L. Jordan, M. Schroeder-Moreno, P.D. Johnson, J.L. Heitman, Y.J. Cardoza, R.L. Brandenburg, B.B. Shew, T. Corbett, C.R. Bogle, W. Ye, and D. Hardy. 2010. Crop Response Following a Tall Fescue Sod and Agronomic Crops. Agron. J. 102:1692-1699.
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  • Liang, B., Lehmann, J., Sohi, S.P., Thies, J.E., O’Neill, B., Trujillo, L., Gaunt, J., Solomon, D. Grossman, J. Neves, E.G., Luizão, F.J. 2009. Black carbon affects the cycling of non-black carbon without priming of aged black carbon in soil. Organic Geochemistry. 41:206–213.
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  • Alvarado, A., I. Iturriaga, T.J. Smyth, J.M. Urena and E. Portuguez. 2009. Effect of phosphorus fertilization on nutrient absorption and potato yield in Andisols of Costa Rica. Agronomia Costarricense 33:45-61.
  • Alvarado, A., I. Iturriaga, T.J. Smyth, E. Portuguez and. J.M. Urena. 2009. Residual effect of phosphorus from fertilizer applied to potatoes in Andisols of Juan Vinas, Costa Rica. Rica. Agronomia Costarricense 33:73-76.
  • Silva, I.R., T.F. Correa, R.F. Novais, T.J. Smyth, T. Rufty, E.F. Silva, F.O. Gebrim and F.N. Nunes. 2009. Timing, location and crop species influence the magnitude of amelioration of aluminum toxicity by magnesium. R. Bras. Ci. Solo 3:65-76.
  • José, J.F., I.R. Silva, N.F. Barros, R.F. Novais, E.F. Silva, T.J. Smyth, F.P. Leite, F.N. Nunes and F.O. Gebrim. 2009. Boron mobility in eucalyptus clones. R. Bras. Ci. Solo 33:1733-1744.
  • Sobral, L.F., Cintra, F.L. and T.J. Smyth. 2009. Lime and gypsum to improve root depth of orange crop in an Ultisol of the Coastal Tablelands. R. Bras. Eng. Agric. Ambiental 13:836-839.


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  • Duckworth, O.W., Bargar, J.R., and Sposito, G.(2008) Sorption of Ferric Iron from Ferrioxamine B to Synthetic and Biogenic Layer Type Manganese Oxides, Geochimica et Cosmochimica Acta, 72, 3371-3380.
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  • Heitman, J.L., R. Horton, T. Ren, I.N. Nassar, and D. Davis. 2008. A Test of Coupled Soil Heat and Water Transfer Prediction Under Transient Boundary Temperatures. Soil Sci. Soc. Am. J. 72:1197-1207.
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  • The Effects of Bacterial Additives upon Microbial Populations in Septic Tanks. S. Pradhan, M.T. Hoover, G.H. Clark, M. Gumpertz, A.G. Wollum, C. Cobb and J. Strock. Journal of Environmental Health. Vol. 70, No. 6, 2008.
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  • DeSutter, T.M, T.J. Sauer, T.B. Parkin, and J.L. Heitman. 2008. A Continuous, Closed Loop Measurement System for Soil CO2 and Prospects for Its Application to the Gradient Flux Approach. Soil Sci. Soc. Am. J. 72:126-134.
  • Iyyemperumal, K., D. Israel, W. Shi. 2008. Soil microbial biomass, activity and potential nitrogen mineralization in a pasture: impact of stock camping activity. Soil Biology & Biochemistry 39, 149-157.
  • Boniche, J., A. Alvarado, E. Molina, A. Ares and T.J. Smyth. 2008. Respuesta del pejibaye para palmito a la fertilización con fósforo en la Zona Norte de Costa Rica. Agron. Costarricense 32:31-54.
  • Boniche, J., A. Alvarado, E. Molina and T.J. Smyth. 2008. Descomposición y liberación de carbono y nutrimentos de los residuos de cosecha en plantaciones de pejibaye para palmito en Costa Rica. Agron. Costarricense 32:73-86.
  • Silva, I.R., T.F. Correa, R.F. Novais, F.O. Gebrim, F.N. Nunes, E.F. Silva and T.J. Smyth. 2008. Protective effect of divalent cations against aluminum toxicity in soybean. R. Bras. Ci. Solo 32:2061-2071.


  • Duckworth, O.W., and Sposito, G. 2007. Siderophore-Promoted Dissolution of Synthetic and Biogenic Layer Type Mn Oxides, Chemical Geology, 242: 202-213.
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  • Perez, M.J., T.J. Smyth and D.W. Israel. 2007. Comparative effects of two forage species on rhizosphere acidification and solubilization of phosphate rocks of different reactivity. J. Plant Nutr. 30:1421-1439.
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  • Buckelew, J.K., D.W. Monks, K.M. Jennings, G.D. Hoyt, and R.F. Walls, Jr. 2006. Eastern Black Nightshade (Solanum ptycanthum Dun.) Reproduction and Interference in Transplanted Plasticulture Tomato. Weed Science 54:490-495.
  • Zhou, J., J.L. Heitman, R. Horton, T. Ren, T.E. Ochsner, L. Prunty, R.P. Ewing, and T.J. Sauer. 2006. Method for Maintaining One-dimensional Temperature Gradients in Unsaturated, Closed Soil Cells. Soil Sci. Soc. Am. J. 70:1303-1309.
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